Headlamp wrench



l BVM Fume 3 1924- A 1,496,707

Patented .lune 3, 1924v i fr t.

THOMAS I. GAW, 0F BROOKLYN, NEW YORK.

HEADLAMP WRENCH.

Application led May 1,

To all whom t may concern.

Be it known that I, THOMAS l. Graw, a citizen of the United States, anda resident of the cit?,7 of New York, borough of Brooklyn, in the countyof Kings and State of New York, have invented a new and lmprovedHeadlamp Vrench, of which the following is a full, clear, and exactdescription.

This invention relates to a h'ead lamp wrench, and particularly relatesto one involving the use of a flexible strap or gripping member.

An object of the invention is to provide a strap wrench which can bevery quickly and easily applied to the object upon which it is to work.

Another object lconcerns the provision of means whereby after the strapis applied it can be quickly adjusted in place.

A further object relates to the provision of means whereby after thestrap has been adjusted in place there is no possibility of its slippingbecause of the increased grip caused by the increase of application ofpressure to the wrench.

A still further object relates to the provision of means whereby thestrap and its cooperating parts can be very quickly removed from theobject to which it is applied.

The invention is illustrated in the drawings, of whichf Figure l is aplan view of the wrench applied to a head lamp casing for the purpose ofremoving the front cover therefrom; and

Figure 2 is a partial front elevation of the wrench.

The form of the invention shown in the drawings is a preferred form,although it is understood that modifications in the construction andarrangement ofthe parts and in the character of the materials used maybe adopted without departing from the spirit of the invention.

The preferred form of the invention, which is shown in the drawings,includes a strap member 1 adapted to be passed around any object towhich the wrench is to be applied. One end of this strap is formed in aloop 2 which is, in a manner hereinafter to be described, connectedXedly to' part of an operating member or handle 3. The other end 4 ofthe strap is loose and is adapted temporarily to be adjusted in the formof a loop 5 which Iis temporarily gripped or held or clamped by aclamping member or foot 6 having on its lower face teeth 7 whereby aends 12 turned over to prevent the links l0 fromhbeing removed from theapertures in the pin 11. In this way the particular angular relationbetween the handle 3 'and the clamping foot 6 can be varied within thelimits of movement permitted by the links 10, but the clamping foot isprevented from being entirely separated from the handle 3. The handle 3is adapted to be moved in the direction indicated by the arrow in Fig.2, and on the side of the handle or operating member opposite thedirection of clamping movement thereof there is provided a lateralextension 13, which may be a slotted member or a pair of arms as shown.These arms at their outer ends are provided with trans.

verse bars 14 and 15 disposed substantially one over the other. To theupper crossbar 14 the fixed end or loop 2 of the strap is fastened. Tothe lower crossbar 15 of the lateral extension the temporary loop 5 ofthe strap is fastened.

It will be observed that the movement of the handle in the direction ofthe arrow shown in Fig. 2 will cause the rotation of the crossbars 14and 15 in an anticlockwise direction around the pivot point formed at`the bearing between the pointed ends 9 and the groove 8. Furthermore thepressure of the handle downward will be exerted through the clampingfoot 6, whereby the more pressure there is applied to tighten the strap,the tighter will the clamping member hold the temporary loop 5 of thefree end of the strap. Furthermore, the rotation of the crossbars 14 and15 will tend to pull the ends of the straps in opposite directions totighten the straps on the head lamp cover, so that the gripping actionbetween the straps and the cover will be very rm, permitting the properapplication of force and causing the removal of the cover from thecasing. Of course, this same action can take place for any objectsaround which the strap 1 can be passed provided it ;iplied and the freeend is looped around the crossbar l5 andpassed beneath the clampingfootf. The foot of the lower end of the operating member is thendisposed in the groove 8 and further movement of the hanf idle oroperating member is eliective. ln

this way it will be seen that the strap can be in apreliminary mannerfastened as tight as possible on the object before any real or greatamount of pressure is applied.

This avoids any unnecessary movement of the wrench before it begins togrip the object. The foot 6 has the additional function of providing abearing surface for the bottom of the lever, spreading4 the pressure or'ilfsaid lever on the cover of the head lamp over al larger area so as toprevent injuryY to' this cover because of the downward pressure on thehandle when removing said cover.

What I claim is:-

1. ,A strap wrench which includes a. ilexible strap to be passed aroundan object-` an operating member or handle to which one end of the strapis fixed, and a clamping irfoot pivotally connected with the lowerI endof saidhandle and adapted to be pressed b v said handle against the treeend oi: the strap as the handle is operated to tighten the strap on theobject.

2.' A strap wrench which includes an operating member, a VFlexiblestrap, one end oi which is iXed to the operating member,y the free endor" said strap .being looped temporarily around another portion of saidop erating member, and a clamping' foot pivotallv connected with thelower end ot thro` operating member and adapted to be pr Ysed againstthe` free end of the strap as said member is operated to tighten thestrap on the object.

3. A strap wrench which includes an op erating handle and a clampingfoot associated with the lower end of said handle and having teeth onits lower edge, said foot ha v ing a notch in its upper edge, the lowerend of the handle being pointed to bear in said notch.

4. A strap wrench which includes an operating handle and a clamping footassociated with the lower end or said handle and having teeth on itslower edge7 said 'foot having a notch in its upper edge, the lower endof the handle being pointed to bear in said notch, and a link connectionbetween the handle and the foot to looseljT connect the foot with thehandle.l

5. A strap wrench which includes an operating,- handle having a pointedlower end, a clamping` '.t'oot adjacent the lower end of the handle andhaving a notch in its rear face in which the lowerl end of the handle isadapted to lie, said handle having a direction of clamping movement, anextension laterally disposed at right angles to the handle and to therear thereof relative to the direction of clamping movement, pair otcrossbars on said extension disposed one above the other` a flexiblestrap passing around an object, one end of said strap being fixed to theupper of said crossbars, the other end of said strap being looped aroundthe lower of said crossbarsv` the free end ot said strap passing beneaththe clamping` foot.

6. A strap wrench which includes an operating handle having a pointedlower end` a clamping foot adjacent the lower end of the handle andhavinga notch in its rear face in which the lower end or' the handle isadapted to lie, said handle having" a direction of clamping movement.`an extension laterally disposed at right angles to the handle and to therear thereof relative to the direi-- tion of clamping move-nient, a pairoi cross bars on said extension disposed one above the other, a flexiblestrap passing around an object, one end of said strap being 'tired tothe upper of said crossbars, the other end of said strap being loopedaround the lower of said crossbarsthe free end of said strap passingbeneath the clamping` foot` and an adjustable link connection betweenthe clamping` foot and the lower end of the` operating handle.

THGMAS I. GA`W-

